eastwood



2 Sheets-Sheet 1.

' (3-. W. EASTWOOD.

Brick-Machine.

No. 198,585. Patented Dec. 25, 1877.

Fig.2. F mum-lull 1||n|||m WITNESSES NJETERS FHOiO-LITHOGRAPNER, WASHINGTQN. D G.

2 Sheets-Sheet 2;.

- W- EA'TW OD. Bl -Machine. No. 198,5 5

INVENTOR {Patented Dec. 25, 1877.

IL'EIERS; PHOTO-LITHOGMFNER, WASHINGTON. D. C.

' i fi T bil .l ai U, y uble a l i w l n iaffi-Gafi i w b i g la f rei n-ran es to eachi'other; as shown in Fig; he; main shaftj'G is 'connected'by'miter in a yerticalcagn-shaftfE, ar eadidf wh hf mn ii ln os l? oti i "a "h rizon a (p ane t t gl e ,operated jthroug' do uble "cranki so as to pressure" to the mold of the-machine; Theimproyernen further relate to attach- 111g hQIsa dI-t Q afli is a y to si nne t iHg-170d,{in orde t Vary the position" of the {plunger f r'p duc fl fl a. a

will, as hereinafteridescribed.

unger ahea "stroke Theim roy'ernentsiurtherrela no tram say i o emr y t lra th l n er). o, fas biei theformedbricki "eachinold reaches the exaem yt n e iefit? a -t am ar i e automatically V p v fil e p n r' f r hei en i 0f ai w har f ihe imp vem j it r el ejtqthe o b at ofjr -pr s .ir e W hWhB rerods and the toggle, nd plunger for. pressing so a ddembh d sectional View oft ripping-mechanism ofv the tramway'ifor, ele ati g theplungersl *Fig.

, o f h' g gleanfdzon fith k md d a d plu ge sy showing the P nger-(elevated t'ofithe extent'required in P gfl ricki; F i 6 'isfl'avertical: section \on-theline'6:6,E1g showingjtheplunger'at Figij'Z'is a detachedjplan view'oftheope'ratingfpart'of the cameshaftand thepitmanyoke f a on which it acts..; is an eleyation of the.

a same.

eanse IPe n t' he e ntofv its lo'west position and about to beelevated;

; for a new charge.

present afk ee we,

nd; to the base or repressure plate and peratdthrough'the medium ofa contwo opposite faces e e of the cam E form concentric arcs, each of ninety degrees, more or less, so as to cause the mold-table to dwell at each extremity of its stroke for a sufficient period for the pressure of the clay in one mold and the discharge and refilling of the other mold. Within the two mold-cavities F F are fitted plungers P P, which, when not under pressure, are carried by wheels or rollers 10 on a tramway, J, or on either of the hinged leaves J J thereof, and are supported, when in their highest position, by hin ged catches or triggers K K so as'to raise the plunger as the table stroke in the opposite direction the hinged tramway is again elevated by a tappet, L or L, on the mold-table acting against hooked arms M or M on the hinged tramway, serv- [ing to elevate it until the catch K or K drops beneath and supports it. N represents the upper repressure plate, against which the clay is pressed. Said plate is formed with an orifice, n, to permit the escape of surplus clay, or to compensate for the presence of a stone or other incompressible body, and is connected by tie-rods O O O O with the base-plate B. The two re-pressure plates, between which the toggle-joint acts, will thus be seen to constitute, with their tie-rods O, a press-frame of 316 505 pace shr neen er a. Z QHQ J l plflifi i s i ifil gK 0 i" an i me ing; I a ehfie o fitted to 'suitable lyertical studs on the or 'projections'at the rear extrema; of the mold-table, for the cam E to act agains The At the termination of the yfIt will be observed that by shortening'the pitman O, by placing the connecting-pin in .first, pressure of the bricks, when pressed these. bricks the pitman is again lengthened,

great strength, which is entirely independent" of other parts of the machine.

'It will be seenfrom the construction of par represented in Figs. 5 and 6 of the drawings that the pressure of the toggle A is received directly on the stem of the plunger P or P, leaving the rollers 10 free. At other times the plungers rest on their rollers, and the said rollers prevent any sensible friction against the tramways in the act of throwing up'the plungers to eject the molded bricks.

In order to adapt the machine for molding either pressed or common brick, I connect the pitman G adjustablyto the projecting knee A of the toggle A, as illustrated, for example, in the plurality of holes 0 0 0 either of the holes a o the plunger will not be caused to rise so far. A larger quantity of clay can thus be placed in the mold for the bricks are to be made, and the partly-pressed brick, having been removed, is sanded or otherwise treated in theusual way.

When it is desired to repress a quantity of soas to cause the plunger to be thrown up to asuflicient extent to compress the said bricks.

@Having thus described my invention, the

ewand desire to 2. Thecombination,withthevibrating moldtable F, of the toggle A,ope'rated by cams G G and pitman 0, so as to impart the pressing movement to the plunger at each movement of the mold-table, asexplained.

3. The combination of jthe'jpressure-plates B N, the tie-rods O 0, one or more plungers, P, the toggle A, constructed-, with a projecting knee, A and the pitman Qflconnected at one end to a crank or cam movement, and at the other end'adjustably to theprojecting end A of the toggle, as and forthepurposesset forth. L

4. The tramways J J operating as de: and dropping auscribed, to lift the plunger-s, I tomatically to permit: their, escent after the brick is discharged.

5. Thepress-fi'ameconstructeigasdescribed,

with, plates B N and tie-rods .010, in (mm; bination with the mold-tablelF, supported in- H 1 1,.1as and for the dependently on rollers purpose set girth.

Witnesses:

OCTAVIUS KNIGHT CHAS. J. Gooon.)

HARLEs-w; Asfrwoop. 3 

